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Transverse momentum dependent distributions in e+e and semi-inclusive deep-inelastic scattering using jets

  • Daniel Gutierrez-ReyesEmail author
  • Ignazio Scimemi
  • Wouter J. Waalewijn
  • Lorenzo Zoppi
Open Access
Regular Article - Theoretical Physics
  • 24 Downloads

Abstract

The extraction of transverse momentum dependent distributions (TMDs) in semi-inclusive deep inelastic scattering (SIDIS) is complicated by the presence of both initial- and final-state nonperturbative physics. We recently proposed measuring jets (in- stead of hadrons) as a solution, showing that for the Winner-Take-All jet axis the same factorization formulae valid for hadrons applied to jets of arbitrary size. This amounts to simply replacing TMD fragmentation functions by our TMD jet functions. In this paper we present the calculation of these jet functions at one loop. We obtain phenomenological results for e+e dijet (Belle II, LEP) and SIDIS (HERA, EIC) with a jet, building on the arTeMiDe code. Surprisingly, we find that the limit of large jet radius describes the full R results extremely well, and we extract the two-loop jet function in this limit using Event2, allowing us to achieve N3LL accuracy. We demonstrate the perturbative convergence of our predictions and explore the kinematic dependence of the cross section. Finally, we investigate the sensitivity to nonperturbative physics, demonstrating that jets are a promising probe of proton structure.

Keywords

Deep Inelastic Scattering (Phenomenology) Jets 

Notes

Open Access

This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited

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Copyright information

© The Author(s) 2019

Authors and Affiliations

  • Daniel Gutierrez-Reyes
    • 1
    Email author
  • Ignazio Scimemi
    • 1
  • Wouter J. Waalewijn
    • 2
    • 3
  • Lorenzo Zoppi
    • 2
    • 3
  1. 1.Departamento de Física TeóricaUniversidad Complutense de Madrid (UCM) and IPARCOSMadridSpain
  2. 2.Institute for Theoretical Physics Amsterdam and Delta Institute for Theoretical PhysicsUniversity of AmsterdamAmsterdamThe Netherlands
  3. 3.Nikhef, Theory GroupAmsterdamThe Netherlands

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